Steam, air, and water trap-valve.



J. E. BOBGBN. STEAM, Am, AND WATER TRAP VALVE. APPLICATION FILED JUNE 1, 1908. 986,797, Patented Mar.14,1911.

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wmie cd1 www J. E. BOEGEN.

STEAM, AIR, AND WATER TRAP VALVE.

APPLICATION FILED JUNE 1I 1908.

Patented M3114, 1911.

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J. E. BOEGBN.

STEAM, AIB., AND WATER TRAP VALVE.

APPLIOATION FILED 11111111, 190s.

986,797. Patented Mar. 14, 1911.

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'UNITED sTATEs PATENT onirica;

JOHN E. BOEGEN, OF BERWYN, ILLINOIS, ASSIGNOR TO CHARLES P. MONASH, OF CHICAGO, ILLINOIS.

STEAMAIR, AND WATER TRAP-VALVE.

Specification of Letters Patent.

Patented Mar. 14, 1911.

Application filed June 1, 1908. Serial No. 436,057.

To all whom it may concern.'

Be it known that I, JOHN E. BonoeN, a citizen ot' the United States, residing at Berwyn, in 'the county ot Cook and State of lllinois, have invented a certain new and useful, Improvement in Steam, Air, and lVater Trap-Valves, ot' which the following is a specification.

This invention relates to trap valves 'for automatically discharging water of condensation or other liquid or medium, such as steam or air, without attention from an operator, when once adjusted .for use; and is particularly adapted for use with steam heating systems, by attachment to a radiator or heating coil, but can be used generally where itl is desired to trap and discharge liquids and mediums ot various kinds.

The objects of the invention aremto construct a trap valve embodying a easing having a chamber with a float located in the chamber and adapted to be elevated with the rise ot' the water of condensation in the chamber, the casing having in its side and bottom wall a downwardly and inwardly extending conduit, the .lower end of which communicates with an outlet passage in the bottom of the casing, the mouth or upper end ot' the side conduit opening into the chamber with its lower' side approximately in line with the midway length ot' a float in the chamber, when the float is at rest or in normal position; to construct a casing having an open top closed by a cap. so as to t'urnish a chamber, the casing having an inlet passage leading` into the chamber, and hav-4 ing in its side and bottom wall a side conduit leading it'rom the chamber, the casing also having in the bottom a discharge or outlet passage with which the lower or discharge end of the side conduit or passage communicates, the chamber having located and operating therein a float, the lower end of the tloat carryii'ig a stem controlling the discharge between the side conduit or passage from the chamber and the bottom discharge or outlet passage; to construct a trap valve consisting ot' a casing inclosing a chamber with an inlet passage into the chamber and a side conduit or passage leading from the chamber, the side conduit or passage opening, at the lowermost side ot' its receiving end or mouth, approximately in line with the midway length of the chamber for first educting oil and floatage on the top of the water of condensation in the chamber, thereby maintaining the trap valve clear of accumulated oil and tloatage deposited in the chamber; to :lurnish an outlet from the lloat chamber ot' a trap valve said outlet consisting in part ot' a side conduit, with a receiving end or mouth opening into the chamber at a point to discharge oil and lioatage and to allow air to vent from the trap valve, as the chamber lls with the water ot' condensation; and to improve, generally, the construction and arrangement and operation of the elements entering into the :formation ot' the trap valve as a whole.

The invention consists in the features ot construction and combination of parts hereinafter described and pointed out in the claims as new.

In the drawings, Figure l is a sectional elevation ot the trap valve ot' the present invention, with the float partly in t'ull elevation; Fig. Q a similar view to Fig. l, showing a modification ot' the inlet passage and by-pass and its valve; liig. Q is a perspective View of the plug in the bottom wall o'li the casing; Fig, 3 a detail in section, showing a check valve controlling the inlet passage into the float chamber ot the trap valve; Figs. 4, and 7 are sectional elevations, each showing a form ot float adapted for use with the trap valve, the several floats having modified liorms of construction.

The trap valve ot' the present invention has a shell or casing l inclosing a chamber 2 and open at the top and closed at the bottom, except as to having a discharge or outlet passage :t'or the water ot condensation, 'formed in the chamber 9 of the casing. or 4tor discharge ot other liquid or medium :lrom the chamber. An inlet passage il, :formed in a neck 4 ot' the shell or casing. opens into the chamber 2 adjacent the bol'- tom ot' the chamber, as shown in Fig. l; and connected with the neck Ll is a union nipple 5, having a passage (l which opensl into the passage 3, and the union nipple is connected to the neck by a nipple uut T. as usual.

The open upper end ot the shell or casing l is closed by a ca-p b, having a depending rim or flange S) with an exterior screw, thread by which the cap is threaded into the end of the shell or casing; and when in place a flange 10 on the cap abuts against the end face of the shell or casing so as to make a tight joint between the cap and the shell or casing. The cap 8, on its under side, as shown, is formed with a chamber or cavity 11 to permit of the operation of the ioat. A plug 12 is threaded into the cap 8- at the center, and this plug has a guide hole 13 which receives a guide pin or stein on the upper end of the float to maintain the float in a straight line of movement.

The lower end of the shell or casing 1 has formed therewith a neclr or boss 14, having a threaded hole 15 for the attachment of a discharge or vacuum pipe in the use of the trap valve. The threaded hole 15 opens into a chamber 16, and a po-rt 17 opens into the chamber 16, which port 17, in the construction shown, is formed in a plug 18, threaded into a hole 19 formed in the bottom wall of the shell or casing 1, as shown in F ig. 1. The plug 18, as shown, has a iange or rim 2O with a cross-slot 21 for inserting the plug with a screw-driver or other tool, but the liange 2O with its crossslot is not a necessity and can be omitted, leaving the top of the plug 18 flush or nearly so with the inner face of the bottom wall of the shell or casing. The plug 18 has a central longitudinal passage or hole 22 extending to th-e port 17 and terminating in a seating face 23 around the port; and leading into the passage or hole 22 is a cross passage 24 forming, with the lower' end of the passage or hole 22 and the port 17, a discharge or outlet passage for the water of condensation or other liquid or medium. The lateral or cross passage 24, at one end,

`is in communication with a side conduit or assage 25, formed in the side and bottom wall of the shell or casing 1 and having, at its upper end, a mouth 26 opening into the chamber 2 of the shell or casing, with the lowermost side of the mouth 26 in line, or approximately so, with the midway length of the chamber and is located in such relation to the filling of the chamber with the water of condensation or other liquid that any oil or floatage on top of the water of condensation will flow into the side conduit passage, before the line of flotation for the float is reached and the float elevated, so as to open the bottom discharge or outlet passage leading into the discharge chamber 16, thereby removing the oil and tloatage from the chamber 2, prior to the iow and free discharge of the water of condensation or other liquid or medium in the chamber 2, thus maintaining the chamber 2 clear of oil and any oatage that might accumulate in the chamber and interfere with the operation of the float in the chamber.

The float 27, in the form shown, is made of two halves or sections of thin metal,

joined at the center by overlapping beads, i and this wall 36 has therein a cross chamber so as to be practically air tight. Each end of the float has an outwardly turned rim 28 encircling a hole or opening 29, and the opening 29, for the upper end of the float, has secured therein a plug or reinforcement 30, in which is secured a guide pin 31, yprojecting into the guide hole 13 of the plug 12, for guiding and maintaining the top of the float in operative position. The opening 29, at the lower end of the ioat, has entered thereinto and secured therein a plug or reinforcement 32, so that when the plugs or reinforcements 30 and 32 are in place the float is practically air tight so as to rise and fall with the liquid or Amedium in the chamber 2, as the liquid or medium rises and falls in the chamber.

The plug or reinforcement 32 has secured therein a stem 33, the lower end of which is formed so as to present a seating face 34 to co-act with the seating face 23 around the port- 17, and, for practical purposes, the contact of the seating faces 34 and 23 should be slight, but sufficient to close communication between the lateral passage or hole 24 and the port 17, which will allow the iioat to rise readily and without interference from adhesion between the seating faces, and at the same time the end face of the stem 33, presented in line with the port 17, will not be suflicient to interfere with the upward movement of the lioat to any material extent, when the trap valve is used in connection with a vacuum system of heating or for other purposes where a vacuum is employed for discharging purposes. The stem 33 has anend slo-t or nick 35 for venting air from the upper portion of the float chamber in the ordinary operation of the trap valve. The slot or nick 35 is in open communication with the side conduit or passage 25, and is of sufficient depth to prevent a sealing action from the water of condensation that would interfere with the venting of the air under ordinary conditions. The air enters the upper portion of the float chamber above the water of condensation and is free to flow into the side conduit or passage 25 and pass through the slot or nick 35 and enter the chamber 16 to be discharged into the atmosphere or elsewhere as desired, and this whether a vacuum is present to draw off the air, or the air is forced out by the rise of the water of condensation in the iioat chamber. The terminal end of the side conduit or passage is curved, and the curvature is one that permits cf the escape of the water of condensation, with the rise of the float, without fully i closing the cross passage 24 and slot or nick 35 against the escape of air as the float rises and falls.

A wall 36 of the shell or casing 1 connects the neck 4 and the neck or boss 14,

or hole 3T, which receives a valve plug 38, l tloat is closed by a plug or reinforcement adapted to be hand operated. the valve plug 38 has a cross passage 3f), which can be brought into communication with or sluit ott' from communication with a by-pass 110, connecting the inlet passage 3 and the dis charge chamber 1G, so that, in starting the trap, direct communication can be established between the inlet passage 3 and the discharge passage or chamber lo to discharge any accumulated water ot' condensation in the radiator or coil direct, and also to furnish con'nnunication direct betweenthe two passages ttor blowing out purposes.

The construction, shown in Fig. 1, has a free inlet passage 3 leading into the chamber 2 of the tloat. As shown in Fig'. L), the inlet passage 3 is controlled by a check valve, so that, in case oit back pressure or t'ailure of the vacuum to work, the tlow of water of condensation from the radiator or coil or other sources of supply will be shut ott'.

The construction oit' F ig. 2 has entered into the month of the inlet passage 3 a basket 4H, having' lateral arms ,42 with openings betwen the arms; and in the chamber, formed by the basket il and held in place by the arms or lingers 4t2, is a ball valve 43, and a seat et for the ball valve t3 is formed in the end of the union nipple 5, around the end oit the passage G in said nipple. It will be understood that, when the vacuum is operating correctly, the ball valve will be forced away trom the seat llt so as to furnish open communication into the inlet passage 3 tor the water Vot condensation to tlow into and rise in the chamber 2 tor the l'loat, but` in the event ot' back pressure or 'failure ot the vacuum to operate, the ball valve t3 will be forced against .its seat it4, closing communication into the passage 3 and sluitting otlil the flow oit water of condensation into the chamber 2 ot' the float.

The tloat, shown in Fig. l, has, at the upper end,` a solid guide pin 31, and, at the lower end, a solid sluit otl' or controlling stem 33, but the float can be provided with other t'orms ot' guide pins and controlling or shut o'tl stems than those shown in Fig. 1.

Other forms ot construction tor the Vfloat are shown in Figs. 1t, 5, t3, and 7.

The construction, shown in Figs. 2 has entered into the plug or rein'torcemeiit 30 a tube 45 having a seating end ftt, and the upper end. ot' the tube is closed by ay plug t7 having a port lt-S, so that the tube -ftf' 'turnishes a guide stem 3l:L projecting into the guide passage or hole 13 ot the plug 12 for guiding and directing the upper end ot the `float. The port `t8 permits air, YForced trom the chamber 2 by the admission o't water o't condensation, to pass into the interior ot the the air t0 discharge, the lower end of the and -t- Afloat tor discliarge, and, in order to allow 32 into which is entered and secured a tube ett), which tube serves as a shut oil or controlling stem 253, its lower end having a seating tace, corresponding to the seating 'tace ot the stem 33 in the coiistruction shown in Fig. 1, to co-act with the seating tace Q3 around the discharge port. The top ot the guide hole or passage lil is to be :formed with a seating tace to co-act with the seat ing tace At-t oit the guide pin 3l, so that, with the 'full rise ot the lloat, the passage ot' air through the port 4S will be sluit ott'.

The construction, shown in Fig. 5, has a continuous tube extending through the float and projecting, at each end, beyond the respective plugs or relnlorcements and 32,

`the projecting upper end o't` the tube 50 'forming a guide pin 31D to enter the guide hole 13, the saine as and t'or the same purpose as described tor the guide pin 3l in the construction o't` Fig. l. This continuous tube 50, at its upper end, has a seating tace ft) closed by a plug i-T, with a port 48 corresponding to the same parts and for the same purpose as described tor the construction ot Fig. 4. The projecting lower end o't the continuous tube 5t) Yterms a sluit otl or controlling stem 33, corresponding to and for the same purpose as the shut ott or controlling stem 33 in the construction ot' Fig. 1. The air, with the aonstruction of Fig. 5, is .torced trom the chamber 2 through the port ith and discharges at the lower end ot the continuous tube, and such discharge will continue until the float rises tor the seating .tace to to co-act with the seating tace in the plug '1Q to shut oli communication between the chamber 2 and the port 48, stopping the outtlow ot air 'trom the chamber. The tube 50, at a point just above or in line with the upper 'tace ot' the plug or reinforcement 32, has its wall provided with holes or pertorations 51 for the purpose ot allowing any water ot condensation lornied within thc interior ot the tloat to escape, thus maintaining the interior ot' the tloat lt'ree trom any accumulatimi ot water oit coiulensation.

The construction, shown in Fig. (5, has the lower end of the iloat closed by a plug or reini'orcement 32" with an interior screw thread, into which is threaded the upper end ot a tube 52. which tube constitutes a shut ott' or controlling stem 33C, (,-orrespomling to and for the same purpose as the sluit ott' or controlling stem 33 in the constriurtion ot Fig. 1, except that the tube :furnished a discharge 'tor air. The tube 52 has loosely entered thereinto the lower end ot' a tube 53. extending through the tloat trom end to end, with the upper end ot' the tube 5?, projecting beyond the plug or reinforcement 250 and forming a guide pi n or stem 3l, and the up- Cit closed by a plug 47 with a port 48, corresponding to and for the same purpose as the same parts described for the construction of Fig. 4. The continuous tube 58 is free to slide within the tube 52, and thereby compensate for expansion and contraction of the body of the float in use without breaking the connection between the tubes 52 and and destroying the free passage of air through t-he tube 53 to discharge through the tube 52; and the air will continue to dis charge until the float has risen to a point where the seating face 46 co-acts with the seating face in the plug l2 to shut olf the flow of air from the chamber 2, with the rise of the float in the chamber. The loose connection of the lower end of the tube 53 with the tube 52 will allow any water of condensation accumulating in th-e float to pass away, thus maintaining the interior of the float free from the accumulation of the water of condensation. rl`he water of condensation, as it rises in the chamber' 2 around the exterior of the float, will force the air from the chamber, as described for the construction of F ig. 4.

The construction shown in Fig. 7 has entered into the plug or reinforcement 32a, and projecting on each side of the plug or reinforcement, a stem 54 having a passage 55, which stem 54 constitutes a shut o or controlling stem 33d, corresponding to and for the same purpose as the shut off or controlling stem 33 in the construction of Fig. l. The projecting upper end of the stem 54 has a cross passage 5G, in communication with the passage 55, for discharging air admitted into the interior of the float, as hereinafter described; and the upper end of the stem 54 has a socket 57 into which is entered and secured the lower end of a stem 58 of eXpansible material. The upper end 59 of the expansible stem 58, as shown, is reduced in cross diameter and terminates in a point having a seating face (SO, so that the eXpansible member or stem 58 acts as a shut off for the inflow of air into the interior of the float. rlhe upper end 59 of the expansible member or stem 58 is loosely entered into a tube or stem 61 upwardly extending from the plug or reinforcement- 30, and forming a guide pin or stem 31d, corre spending to and for the same purpose as the guide pin 81 in the construction of Fig. l. as to guiding and positioning the upper end of the float. The tube or stem 61, at its upper end, has an interior seating face 62, which co-acts with the seating face GO around the point of the upper end 59 of the expansible member or stem, and the upper end of the stem or tube 6l has a seating face G3 with a port or passage G4, for the same purpose as the seating face 46 and the port 48 described for the construction shown in Fig. 4. The air, forced from the chamber 2 by the rise of the water of condensation in the cha1nber,'will flow through the port G4 and discharge around the reduced end 59 of the expansible member or stem 58 into the interior of the float and will pass through the lateral opening 5G into the passage 55 for discharge at the lower end of the tube 54.

The air, with the construction and arrangement of float shown in Fig. 1, is forced out through the mouth or opening 26 into the passage 25 with the rise of the water of condensation in the chamber 2 for the float, and the air thus forced out discharges through the slot or nick 35 in the seating end of the shut off or controlling stem 83, thus insuring the outflow of the air from the chamber of the float, as the water of condensation rises in the chamber.

The air, in the construction of float shown in Figs. 4, 5, 6, and 7, instead of discharging through the mouth or opening 2G of the side conduit or passage 25, will dischargeA through the port 48 of the guide stems 31a, 31D, and 31C, of the respective floats shown in Figs. 4, 5, and G, and through the port 64 of the guide pin 31d in the construction of Fig. 7, the air thus discharging with the various floats, as the waterof condensation rises in the chamber of the float, so long as the air port of the various forms of float is open to permit the outflow of air from the float chamber', but with the air port of the several floats closed by the upper movement of the float the outflow of air will be prevented. The outflow of air, with the construction of Fig. l, is shut off when the water of condensation enters the passage 25, so as to form a water seal around the lateral port or passage 24, closing the slot or nick 35 against the outflow of air.

The main and essential feature of the trap valve of the present invention is, providing a side conduit or passage by which oil and lloatage on top of the water of condensation will be carried off so as not to accumulate in the chamber of the float, and at the same time have provision made by which the air will be removed, as the water of condensation rises in the chamber of the float, and to this end the several forms of floats, which are illustrated and described, can be utilized as the float for operation in the chamber of the trap valve.

The operation of the trap valve will be understood from the foregoing description, but briefly is as follows: The air and water of condensation from a radiator or heating coil will flow into the bottom of the float chamber through the inlet passage 3 and will. gradually lill the chamber around the float. The air will be forced from the chamber, as the water of condensation rises tinue until the air port, furnished by the slot or nick is water sealed, or the air port iL8 or (3.4 is closed by the seating face for the port. The outtlow of air will continue until the accumulated water of coni densation has reached a point where. it can tlow ont from the chamber Q around the tloat, through the opening or mouth .tt into the side conduit or passage and, with the initial outtlow into the side conduit or passage 25, and before the line ot flotation for the tloat has been reached by the. water ot condensation. an)y oil or f'loatage on the top ot' the water ot condensation will first tlow ott into the passage 25, through the mouth or opening 2G. thus removing an)v accumulated oil or tloatage Jfrom the chamber and preventing any filling up ot.' Lthe chamber that would .interfere with the 'free operation or movement ot the t'loat in the chamber from the oil or tloatage accumulating in the chaniber. .\s the water ot' condensation rises to the, line of floatation -for the float and reaches a point where it can outflow into the side conduit or passage 25, the float will rise so as to open the cross passage Q-l, opening' the port 1T so that the water ot' condensation discharged into the side conduit or passage 25 will tlow into the discliarge chamber or passage 'lt through the port 17, and be returned through the connecting pipe, not shown, into a header or other receptacle, as usual, in carrying ott1 the water otl condensation from a vacuum or other heating system.

lt will be seen that the trap valve of the present invention assures the removal of any oil or tloatage from the chamber oit the float, and at the same time provides for a free escape ot the air, so as to prevent the radiator coil from becoming air bound. lVhile the trap valve is especially adapted 'for use with a vacuum system ot' heating, it is intended for and can be used with other systems otl steam heating, and can also be used for automatically discharging air and rater 'from any steam heating or distributing device, and can be used as a grease eX- tractor and separator for con'lpressed air tanks, drips and drains, and for other appliances, where it is desirable and necessary to have an eti'ective and reliable device t'or removing oil and tloatage that would intert'ere with the operation ot' a float or other mechanism.

It will be understood that with the construction o't tloat shown in Fig. 7, as the eX- pansible member or stem is lengthened 't'rom the action ot the water ot' condensation or the heat ot the steam. such lengthening will cause its upper end to seat and close the port tllagainst the admission or inflow of wir. and such lengthening ot' the expansible member or steam can occur prior to the elevation ot the float by the risc ot the water olf condensation in the chamber 2 ot' the float; or the cxpansiblc member or stem can be so adjusted as to be aected by the heat with the elevation of the tloat.

The passage 3, in the construction of Fig. l. opens into the float chamber 2 in an upward direction, so as to deflect the inflow of the water ot' condensation into the chamber in a direction to prevent the water 'from striking directly against the lower end of the float; and it will be seen that, when the water ot' condensation has entered the inlet 3 and tbt` [loat chamber at a pointabove the upper plane ot the inlet passage. a seal is formed which will prevent air and steam t'rom escaping t'rom the radiator or coil. The construction shown in Fig. 9 has the inlet passage 3 o'l a U shape formation. with two legs and a curved lower portion 3b the curved lower portion furnishing a` set tling chamber for the heavy sediment, so as to hold such sediment 't'rom passing into the float chamber. The U passage, with its legs 3, t'orms, in elt'ect'. a goose neck trap, which, when the water ot condensation rises thereinto so as to tlow into thc chamber 2 for the float. will furnish a seal against the eduction or outflow ot' air and steam from the radiator or coil.

The construction shown in Fig. Q, instead ot' having a cutout valve crosswise ot the bv-pass` as in the construction ot' Fig. 1, has the by-pass 10, with a seating 't'ace u. around its inner end. with which a seating lace 7) on a valve head c coacts. 'Ihe valve. head c is carried lj a section ot an adjust ing stem. which stem, in thearrangement shown. has an enlarged section c with an exterior' screw head. extending outwardly 'from which is a section terminating in an end f/ t'or the reception ot a wrench or key, bv means ot' which the 'alve head c can be adjusted. so as to open and close the liv-pass. The section c, ot the 'alve stem, threads into a hole 71, which terminates at its outer end. in a chamber '1' suitable t'or the reception oi a packing. The chamber .2' is termed in a neck j on the shell or casing-1 ot the valve; and this chan'lber v' has threaded thereinto a t'ollower l', by means ot which the packing can be compressed in the chamber so as to make a tight joint around the 7alve stem. The Yfollower or gland extends out from a flange rim 7, having a wall m with an opening or chamber a. which wall encircles the outer end ot the stem and prevents the stem from being broken cti or injured by blows or otherwise. The by-pass l0, in the construction ot Fig. 2. can be opened for blowing' out purposes by receiving the valve head c with its seating tace 7;, so as to open the buv-pass; and the liv-pass is closed by again advancing the valve head with its seating tace into seating position. as shown in Fig. The operation ot the outlet passage Q5 and the float QT is the. same as dcscribed for the operation of these parts in the construction of trap valve shown in Fig. l, and is, therefore, not specifically described. `The oil and ioatage, in the construction of trap valve of Fig. 2, will be first carried away as described for the removal of the oil and loatage in the construction of Fig. l. The difference in the two constructions is in the formation of the inlet passage and theI valve controlling the bypass, and as to these parts, the operation is practically the same in the two constructions. The seating 'face for the guide stem in the plug l2 has a hole or countersink 48 to prevent jamming and breaking down the end of the hollow guide stem and closing the port of said stem.

That I claim as new and desire to secure by Letters Patent is:

1. 1n a ste-am, air and water trap valve, the combination of a casing inclosing a chamber, the casing having an inlet passage for water of condensation to enter thechamber, and having in its side and bottom wall a downwardly and inwardly extending conduit for water of condensation to escape from the chamber, the receiving end of the side conduit opening into the chamber with its lower side approximately in line with the central horizontal plane of the chamber and in a plane below the line of flotation of a float within the chamber, a float operative within the chamber of the casing, and a stem carried by the lower end of the Jfloat and controlling the discharge at the lower yend of the conduit forthe water of condensation from the chamber, substantially as described.

2. 1n a steam, air and water trap valve, the combination of a casing inclosing a chamber, the casing having an inlet passage for wat-er otl condensation to enter the chamber at the bottom, and having in its side and bottom wall a downwardly and inwardly extending conduit for water ot condensation to escape from the chamber, and the receiving end of the conduit opening into the chamber with its lower side approximately in line with the central horizontal plane of the chamber and in a plane below the line ot flotation of a tloat within the chamber, a ioat operative within the chamber of the casing, and a stem carried by the lower end of the float and controlling the discharge at the lower end of the conduit for the water of condensation from the chamber, substantially as described.

3. 1n a steam, air and water trap valve, the combination of a casing inclosing a float chamber, the 4casing having in its low-er end a discharge chamber with an outlet therefrom for discharging water of condensation, an inlet passage vfor water of condensation to enter the float chamber at the bottom on one side, and also having in its side and bottom wall a downwardly and inwardly eX- tending conduit for water ot condensation to escape from the flo-at chamber, the discharge end of the inlet passage opening direct into the lower end of the float chamber and the receiving end of the side conduit opening into the float chamber with .its lower side approximately in line with the central horizontal plane of the chamber and in a plane below the line of flotation of a float within the chamber, and at its discharge end communicating with the discharge chamber in the lower end of the casing, a float operative within the chamber of the casing, and a stem carried by the lower end of the float and controlling the tlow trom the side conduit' into the discharge chamber for the water ot condensation, substantially as described.

-l. ln a steam, air and water trap valve, the combination ot' a casing open at the top and having in its lower end a discharge chamber with an outlet therefrom t'or discharging water of condensation, a cap closing the, open upper end ot the casing, the cap and casing inclosing a float chamber', the casing at the bottom on one side having an inlet passage for water of condensation to enter the tloat chamber and having in its side and bottom wall a downwardly and inwardly extending conduit for water of condensation to escape from the tioat chamber, the conduit leading from the midway length ot the chamber to the discharge chamber in the lower end of the casing, the discharge end of the inlet passage opening directly into the lower end of the float chamber and the receiving end of the side conduit opening into the float chamber with its under side approximately in line with the central horizontal plane of the chamber and in a plane below the line of flotation of a float within the chamber, a float operative within the chamber of the casing, the receiving end of the side conduit allowing oil and floatage to pass from the float chamber into the conduit below the line of flotation of the float in the chamber, and a stem carried by the lower end ot' the float and controlling comiminication between the discharge chamber in the lower end of the casing and the sider and bottom wall a downwardly and inwardly extending conduit t'or water ol condensation to escape trom the chamber. the conduit leading from the midway length ot' the chamber to the cross passage and port, the d ischarge end otl the inlet passage t'or water et comlensation opening directly into the lower end of the chamber and the receiving end o'tl the side conduit. opening into the chamber with its under side approximately in line with the central horizontal plane ot' the chamber and in a plane below the line ot' tlotation ot' a lfloat in the chamber, a float operative within the chamber ot the casing. the .inlet end of the conduit allowing oil and tloatage to pass from the chamber into the conduit below the line of flotation ot' the float in the chamber. and a stem carried by the lower end oi the tloat aml controlling communication between the bottom outlet passage oit the casing and the side conduit :tor venting air and discharging water of condensation 'trom the tloat chamber. substantially as described.

(i. In a steam. air and water trap valve, the combination of a casing inclosing a chamber. the casing having an inlet passage t'or water of condensation to enter the chamber and having in its side and bottom wall a downwardly7 and inwardly extending conduit 'tor Vwater ot' condensation to escape from the chamber, the side conduit opening into the chamber with the lower side of its receiving end in a plane below the flotation point of a float in the chamber, tor discharging the upper surface of a medium in the chamber below the line of flotation otl the tloat in the chamber, a 'float operative within the chamber ot` the casing` and a stem carried by the lower end ot' the float and controlling the discharge end of the side conduit for the vater of condensation from the chamber, substantially as described.

7. ln a steam, air and water trap valve, the con'ibination ot' a casing inclosing a chamber. the casing having an inlet passage t'or water ot' condensation to enter the chamber and having in .its side and bottom wall a downwardly and inwardly extending conduit tor 'ater ot' condensation to escape trom the chamber. the discharge end ot the inlet passage t'or the water ot' condensation opening.' direct into the lower end ot' the chamber. and the receiving end ot' the side conduit ttor the. water ot' condensation opening into the chamber with its lower side below the `tloating point ot a float in the chamber. t'or discharging the upper surt'acc ot a medium in the chamber into the side conduit below the line o't flotation ot the float in the chamber. a tloat operative within thc chamber ot the casing. and a stem carried bv the lower end o'tl the tloat and controllingI the discharge end ot' the side conduit tor the water ot' condensation trom the chamber. substantially as described.

S. ln a steam, air and water trap valve, the combination ot' a casing inclosing a float chamber. the casing having an inlet passage `t'or water of condensation to enter the chamber and having in its lower end a discharge chambe' and in its sid and bottom wall a downwardly and inwardly extending conduit in communicatiou with the discharge chamber for water ol condensation to escape Yt'roin the tloat chamber. the receiving end o't the side conduit opening into the tloat chalnber with its lower side in a plane below the line ot' flotation ot a tloat in the chamber, :t'or escaping oil and tioatage trom the upper surface ot' the water ot' condensation in the chamber. a tloat operative within the chamber, and means operated by thc float tor controlling conununication between the discharge end ol the side conduit and the discharge chamber. substantially as dcscribed.

Sl. ln a steam air and water t-rap valve, the combination ot a casing inclosing a tloat chan'iber. said casing having a neck laterally extending 'from thc bottom on ene side. and having' also at the bottom a` central neck downwardly extending with a discharge chamber therein 'tor the water ot condensation. the casing and laterally extending neck having a lsealed inlet passage tor water ot' condensation to enter the lloat chamber and the casing having in itsI side and bottom wall a downwardly and inwardly extemling conduit `tor water ot' condensation to escape from the chamber and enter the discharge chamber of the downwardly extending neck, the upper end ot' the conduit opening into the chamber with its under side in a plane below the line of flotation t'or a tloat in thc chamber. a tloat operative within the chamber, and means carried by the float and operativc to control communication between the side conduit and the discharge chamber with the rise and t'all ot the water ot' condensation in the lloat chamber. substantially as described.

V1t). In a steam, air and water trap valve? the combination ot a casing having a tloat chamber. said casing having a neck laterally extending `from the bottom on one side and having also at the bottom a central downcasing above and in line with the discharge chamber therein tor the water ot condensatien. the casing and laterally extending neck having an inlet passage t'or water ot condensation to enter the chamber. and the casing having in the side and bottom wall a downwardly and inwardly extending conduit 'tor water ol comlensation to escape Ytrom the chamber and enter the discharge chamber ot thc downwardly extending neck. a plug entered into the bottom wall ot' thc casing above and in line with thc discharge chamber in the downwardly extending neck. said plug having a passage furnishing communication between the side conduit and the discharge chamber of the neck, a float operative within the float chamber, and a controlling` valve carried by the lioat and operative to open. and close the communicating passage in the plug with the rise and tall of the water of condensation in the float chamber. substantially as described.

1l. 1n a steam, air and water trap valve, the combination ot a casing inclosing a float chamber, the casing having an inlet passage for water ot condensation to enter the chamber and having in its side and bottom wall a downwardly and inwardly extending conduit for water of condensation to escape from the tioat chamber, a cap closing one end ot the tloat chamber, a hollow 'float operative within the float chamber, a venting stem carried by the lower end ot' the tloat and in communication with the interior of the float, a plug entered into the closing cap and having a guide hole terminating in an end sea-ting tace with a countersink centrally of the end seating face, and a tubular guide and venting stein carried by the upper end of the float and having a longitudinal passage, opening at its lower end into the interior ot the float, with a venting port at its l upper end, the passage and port furnishing communication between the float chamber of the casing and the interior ot the float, said guide and venting stem entering the guide hole of the plug and having at its upper end around the venting port a seating tace evo-acting with the end seating tace of the countersink in the guide hole of the plug, for closing the air vent from the float chamber of the casing and preventing upsetting of the seating end of the tubular guide and venting stem with the riseA of the float in the float chamber, substantially as described.

12. 1n a steam, a`1 and water trap valve, the combination ot a casing inclosing a float chamber, the casing having an inlet passage for water of condensation to enter the chamber and having in its side and bottom wall a conduit with the under side of its inlet end in a plane below the line of flotation of a ioat in the chamber tor water ot condensation to escape from the chamber, the casing also having a chamber in its lower end tor receiving and discharging water of condensation from the conduit, a float operative within the float chamber, a shut oil? stem carried by the lower end of the float, and 'plug` `heaving ay vertical passage receiving the shut ott' stem and'an outlet passage for discharging` the water ot condensation from the side conduit, said plug entered into the bottom wall of the casing and having a rounded upper end for preventing accumulation ot sediment and grit that would interfere with the free movement ot the shut oft stem in the passage ot the plug in opening and closing the outlet passage for discharging the water of condensation, substantially as described.

13. ln a steam, air and water trap valve, the combination of a casing inclosing a chamber, the casing having an inlet passage for water of condensation to enter the chamber and having in its side and bottom wall a conduit for water of condensation to escape from the chamber, a plug entered into the bottom wall of the casing and having a vertical passage and a cross-passage with a port in communication with the side conduit for discharging water of condensation from the conduit, a V[loat operative within the chamber and a stem on the lower end of the float entered into the vertical passage ot' the plug and controlling communication between the cross-passage and port and the terminal end of the conduit, said conduit at its inlet end opening into the chamber in a plane below the line of flotation of a loat in the chamber for draining ott' the upper surface of the medium in the chamber, before the water ot' condensation entering the chamber has risen to the line of flotation for the float to fully open the bottom outlet ypassage and discharge the water of conden-V sation, substantially as described.

14. 1n a steam, air and water trap valve, the combination of a casing inclosing a iioat chamber, the casing having an inlet passage for water of condensation to enter the chamber at the bottom, said inlet passage adapted to be sealed by the inflow of the water of condensation into the chamber, said casing also having in its side and bottom wall a conduit for water of condensation to escape from the 'float chamber, and having also in its bottom wall an outlet passage in communication with the side conduit for discharging water oit condensation from the side conduit, said side conduit having its inlet end at the under side located and arranged in a plane below the line of flotation of a tloat in the chamber for an initial surtace discharge of the water of condensation from the 'float chamber, such discharge carrying with it the oil and ioatage, and a float operative within the chamber and adapted to be raised by the rise of the water of condensation in the float chamber to the vfloating point of the float, as the surface discharge ot the water of condensation is started, and by such rise open the bottom outletpassage for discharging the surface tioatage and the water oi condensation escaping into the side conduit, substantially as described.

15. ln a steam, air and water trap valve, a casing inclosing a -ioat chamber, the ca sing having in its side and bottom wall a downwardly and inwardly extending conduit, said conduit at its upper end opening into the chamber with the under side ot' its inlet below the line of flotation of a float in the chamber and furnishing a drainage for the upper surface ot the medium in the chamber bet'ore the medium has risen to the line of 'full 'flotation for the float in the chamber and said conduit having its terminal lower end in communication with an outlet passage in the bottom of the casing, a float in the casing adapted to rise and tall with the rise and :t'all of the medium in the casing, and a stem on the lower end ot' the float controllingl the outlet at the terminal lower end ot' the conduit, substantially as described.

16. In a steam, air and water trap valve, a casing inclosing a float chamber, the casing having in its lower end a discharge chamber and having in its side and bottom wall a downwardly and inwardly extending conduit, said conduit at its upper end opening into the chamber with the under side oit its inlet below the line ot' flotation of a float in the chamber and furnishing a drainage for the upper surface ot' the medium in the chamber before the medium has risen to the line of full flotation for a float in the chamber and said conduit having its terminal lower end in communication with the discharge chamber in the lower end ot' the casing, a float in the float chamber otl the casing adapted to rise and fall with the rise and fall ot' the medium in the easing, a stem on the lower end of the float controlling the outlet at the terminal lower end ot' the conduit, and means for venting air from the chamber ot' the casing as the medium entering the chamber rises therein, substantially as described.

17. ln a steam, air and water trap valve, a casing inclosing a float chamber, the casing having in its side and bottom wall a downwardly and inwardly extending conduit for water of condensation to escape from the chamber, said conduit at its upper end opening' into the chamber with the under side ot its inlet in a plane below the line of flotation of a float in the chamber to t'urnish a drainage for the upper surface ot the medium in the chamber, before the medium has risen to the line of `full :flotation for the float in the chamber, a plug entered into the bottom wall of the casing and extending into the chamber ot' the casing, the plug having a longitudinal passage and a cross passage with a port downwardly leading from the cross passage, the cross passage and port forming an outlet passage for water ot condensation from the side conduit, afloat in the casing adapted to rise and it'all with the rise and fall of a medium entering the chamber, and a stem on the lower end oit the lfloat and entered into the longitudinal passage otl the plug with its lower end adapted to seat against. the face ot' the port t'or the Voutlet passage and control the discharge ot' water of condensation, substantially as described.

18. In a steam, air and water trap valve, a casing formed with a float chamber, an inlet passage, for air and water ot' condensation, communicating with the float chamber, and a discharge passage having its re ceiving end comoiunicating with the float chamber at and extending above the level of overflow from the `float chamber into the passage, with the level oit overflow below the line o't' flotation ol,f a float in the .float chamber, in combination with a float operative in the float chamber, and a valve carried by the float for governing the discharge end oi said discharge passage, the float adapted to open the discharge passage when the water of condensation within the float chamber rises above a pretetermincd level of initial overflow .'t'or water from the float chamber into the discharge passage, substantially as described.

1t). In a steam, air and water trap valve, a casing .formed with a float chamber, an inlet passage, for air and water oil condensation, commnnitaiting with the float chamber, and a discharge passage having its receiving end communicating with the loat chamber at and extending above the level of overflow from the iloat chamber into the passage, with the, level ot overflow below thc line ot' flotation o't a float in the float chamber, in combination with a float operative in the float chamber, and a valve carried by the float lor governing the discharge end ot said discharge passage, the float adapted to open the discharge passage when the water ot' colnlcnsation within-` the `float chamber rises above a predetermined level ot overflow -for water from the float chamber into the discharge passage, said trap valve being provided with means for discharging air t'rom the float chamber', substantially as described.

20. In a steam, air and water trap valve, a casing formed with a float chamber, an inlet passage, :t'or air and water of' conden sation, communicating with thc float chan1- ber, and a discharge passage having its receiving end communit-ating with the `float chamber at and extending above the level ot' overflow from the float chamber into the passage, with the level ot overflow below the line ot' flotation ot a float in the float chamber, the inletI passage being sealed by the accumulation of water ot condonsation therein and in the float chamber, in combination with a float operative in the float chamber, and a valve carried by the float t'or governing the discharge end ot said discharge passage, the float, adapted to open the discharge passage when the water ot condensation within the float chamber rises above a predetermined level of overflow for water from the float chamber into the discharge passage, said trap valve being rovided with means for discharging air from the float chamber, substantially as described.

21. ln a steam, air and water trap valve, a casing formeel with a float chamber, an inlet passage, for air and water of condensation, communicating with the float chamber, and a discharge passage having its receiving end communicating with the float chamber at and extending above the level of overflow from the fioat chamber into the passage, with the level of overflowubelow the line of fiotation of a float in the float chamber, in combination with a float operative in the float chamber, and a valve carried by the float for governing the discharge end of said discharge passage, the float adapted to open the discharge passage when the water of condensation within the fioat chamber rises above a predetermined level of overflow for water from the float chamber into the discharge passage, said float being provided with an air vent discharging beyond the lower end of said discharge passage, substantially as described.

22. A steam, air and water trap valve, comprising a casing inclosing a float chamber, the casing having a liquid discharge passage leading from the side of the float chamber and downwardly extending and arranged to initially discharge liquid from the float chamber at the level of the Lipper surface of the liquid before the float rises and thereby skim floating matter from the surface of the liquid for discharge outside of' and below the bottom of the iioat chamber, the casing also having a conduit providing communication between a radiator and said float chamber, adapted and arranged to be sealed by the accumulation of water of condensation in the conduit, a float operative in the float chamber, and a .valve carried by the oat for governing the liquid discharge passage, said trap valve also having air discharging means arranged to discharge air after it has passed the line of flotation of the float, substantially as described.

23. ln a steam, air and water trap valve, the combination of a casing having a float chamber, an inlet passage discharging into the 'floatchamber and adapted to provide communication between a radiator and said float chamber, and a liquid discharge conduit opening at its upper end into said float chamber and adapted to take liquid from the side of said float chamber intermediate the top of the float chamber and the line of overflow for the surface of the liquid into the conduit, whereby the upper surface of the liquid is skimmed as the liquid is discharged from the float chamber, a plug entered into the bottom wall of the casing and having a liquid discharge port therein communicating with the liquid discharge conduit, a float operative in the float chamber and a valve carried by the float for governing the said liquid discharge port, said trap valvehaving air discharging means for discharging air from the iioatchamber above the line of flotation of the float, substantially as described.

24:. A steam, air and water trap valve, comprising a casing inclosing a float chamber and having an inlet passage communieating with the fioat chamber, said inlet passage adapted to be sealed by accumulation of water of condensation and having also a. liquid discharge passage located outside of the floatchamber, said passage leadingV :fromv one side of the float chamber at a point intermediate of the upper end of' a float and the overflow line for the liquid from the fioat chamber into the said liquid discharge passage, a float operative in the float chamber, and a valve carried by the float and controlling` the liquid discharge passage, said trap valve having means arranged to discharge air from the float ciamber above the line of flotation of the float, substantially as described.

25. A steam, air and water trap valve, comprising a casing inclosing a float chamber and having an inlet passage communieating with said float chamber and arranged and adapted to be sealed by accumulation of water of condensation, an air and liquid discharge port, and a liquid discharge passage, said liquid discharge passage opening at its upper end into the side of the floatchamber at a point intermediate of the point of' overflow for the liquid from ,the float chamber into the liquid discharge passage and the upper end of the float chamber, said liquid discharge passage extending downwardly with its lower portion in a plane beneath the float chamber and in communication with the air and liquid discharge port, a downwardly extending valve controlling the air and liquid discharge port, and a float in the float chamber for operating the valve, substantially as described.

26. A steam, air and water trap valve, comprising a casing inclosing a floatv chamber, said casing` having an inlet conduit communicating with the float chamber and arranged and adapted to be sealed by accumuation of water of condensation, the casing also having a liquid discharge passage opening at its upper end into the side of the float chamber at a point intermediate of the line of initial overflow for the liquid into the discharge passage and the upper end of a float in the float chamber, the lower eX- tremity of said liquid discharge passage eX- tending horizontally beneath and below the plane of the bottom of the float chamber, a hollow seating plug entered into the bottom wall of the float chamber and having a port communicating with the horizontal portion of the liquid discharge passage, a Valve entation of the float in the chamber, substangaging a seatin said seating plug to govern tially as described.

the flow of 1i uid from the side discharve 1 a passage, and aqfloat in the float chamber fbr JOHN L' BOILGIDN controlling the Valve, the trap valve having Vitnesses:

air discharging means for discharging air OSCAR WV. BOND,

from the Hout chamber above the line of flo- WALKER BANNING.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

